USB charger



FIG. 1 is a front perspective view of a USB charger showing my newdesign, shown in an open position of use;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right end view thereof;

FIG. 5 is a left end view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is a front perspective view thereof, shown in a closed positionof use;

FIG. 10 is a rear view thereof;

FIG. 11 is a right end view thereof;

FIG. 12 is a left end view thereof;

FIG. 13 is a top view thereof;

FIG. 14 is a bottom view thereof; and,

FIG. 15 is a rear perspective view thereof.

CLAIM The ornamental design for a USB charger, as shown and described.